3 [_ð]Žã@sGdd„deƒZdS)c@seZdZdZdgZdDdd„Zdd„Zdd „Zd d „Zd d „Z dd„Z dd„Z dd„Z dd„Z dd„Zdd„Zdd„Zdd„Zdd„Zd d!„Zd"d#„Zd$d%„Zd&d'„Zd(d)„Zd*d+„Zd,d-„Zd.d/„Zd0d1„Zd2d3„Zd4d5„Zd6d7„Zd8d9„Zd:d;„Z dd?„Z"d@dA„Z#dBdC„Z$dS)EÚSeta!A simple set class. This class was originally used to deal with sets being missing in ancient versions of python, but dnspython will continue to use it as these sets are based on lists and are thus indexable, and this ability is widely used in dnspython applications. ÚitemsNcCs*g|_|dk r&x|D]}|j|ƒqWdS)zaInitialize the set. *items*, an iterable or ``None``, the initial set of items. N)rÚadd)ÚselfrÚitem©rú,/tmp/pip-build-yz_zf6az/dnspython/dns/set.pyÚ__init__s z Set.__init__cCsdt|jƒS)Nzdns.simpleset.Set(%s))Úreprr)rrrrÚ__repr__)sz Set.__repr__cCs||jkr|jj|ƒdS)z Add an item to the set. N)rÚappend)rrrrrr,s zSet.addcCs|jj|ƒdS)z%Remove an item from the set. N)rÚremove)rrrrrr 3sz Set.removec Cs*y|jj|ƒWntk r$YnXdS)z0Remove an item from the set if present. N)rr Ú ValueError)rrrrrÚdiscard9sz Set.discardcCs |j}|j|ƒ}t|jƒ|_|S)aÞMake a (shallow) copy of the set. There is a 'clone protocol' that subclasses of this class should use. To make a copy, first call your super's _clone() method, and use the object returned as the new instance. Then make shallow copies of the attributes defined in the subclass. This protocol allows us to write the set algorithms that return new instances (e.g. union) once, and keep using them in subclasses. )Ú __class__Ú__new__Úlistr)rÚclsÚobjrrrÚ_cloneBs   z Set._clonecCs|jƒS)z*Make a (shallow) copy of the set. )r)rrrrÚ__copy__Tsz Set.__copy__cCs|jƒS)z*Make a (shallow) copy of the set. )r)rrrrÚcopyZszSet.copycCs<t|tƒstdƒ‚||krdSx|jD]}|j|ƒq&WdS)zaUpdate the set, adding any elements from other which are not already in the set. zother must be a Set instanceN)Ú isinstancerr rr)rÚotherrrrrÚ union_update`s   zSet.union_updatecCsLt|tƒstdƒ‚||krdSx(t|jƒD]}||jkr*|jj|ƒq*WdS)z]Update the set, removing any elements from other which are not in both sets. zother must be a Set instanceN)rrr rrr )rrrrrrÚintersection_updatels  zSet.intersection_updatecCs@t|tƒstdƒ‚||kr"g|_nx|jD]}|j|ƒq*WdS)zWUpdate the set, removing any elements from other which are in the set. zother must be a Set instanceN)rrr rr)rrrrrrÚdifference_update{s   zSet.difference_updatecCs|jƒ}|j|ƒ|S)zwReturn a new set which is the union of ``self`` and ``other``. Returns the same Set type as this set. )rr)rrrrrrÚunionˆs z Set.unioncCs|jƒ}|j|ƒ|S)z†Return a new set which is the intersection of ``self`` and ``other``. Returns the same Set type as this set. )rr)rrrrrrÚ intersection’s zSet.intersectioncCs|jƒ}|j|ƒ|S)z©Return a new set which ``self`` - ``other``, i.e. the items in ``self`` which are not also in ``other``. Returns the same Set type as this set. )rr)rrrrrrÚ differences zSet.differencecCs |j|ƒS)N)r)rrrrrÚ__or__¨sz Set.__or__cCs |j|ƒS)N)r)rrrrrÚ__and__«sz Set.__and__cCs |j|ƒS)N)r)rrrrrÚ__add__®sz Set.__add__cCs |j|ƒS)N)r)rrrrrÚ__sub__±sz Set.__sub__cCs|j|ƒ|S)N)r)rrrrrÚ__ior__´s z Set.__ior__cCs|j|ƒ|S)N)r)rrrrrÚ__iand__¸s z Set.__iand__cCs|j|ƒ|S)N)r)rrrrrÚ__iadd__¼s z Set.__iadd__cCs|j|ƒ|S)N)r)rrrrrÚ__isub__Às z Set.__isub__cCsx|D]}|j|ƒqWdS)zÑUpdate the set, adding any elements from other which are not already in the set. *other*, the collection of items with which to update the set, which may be any iterable type. N)r)rrrrrrÚupdateÄs z Set.updatecCs g|_dS)zMake the set empty.N)r)rrrrÚclearÏsz Set.clearcCs@x|jD]}||jkrdSqWx|jD]}||jkr&dSq&WdS)NFT)r)rrrrrrÚ__eq__Ós    z Set.__eq__cCs |j|ƒ S)N)r))rrrrrÚ__ne__Þsz Set.__ne__cCs t|jƒS)N)Úlenr)rrrrÚ__len__ász Set.__len__cCs t|jƒS)N)Úiterr)rrrrÚ__iter__äsz Set.__iter__cCs |j|S)N)r)rÚirrrÚ __getitem__çszSet.__getitem__cCs |j|=dS)N)r)rr/rrrÚ __delitem__êszSet.__delitem__cCs4t|tƒstdƒ‚x|jD]}||jkrdSqWdS)zFIs this set a subset of *other*? Returns a ``bool``. zother must be a Set instanceFT)rrr r)rrrrrrÚissubsetís    z Set.issubsetcCs4t|tƒstdƒ‚x|jD]}||jkrdSqWdS)zHIs this set a superset of *other*? Returns a ``bool``. zother must be a Set instanceFT)rrr r)rrrrrrÚ issupersetús    zSet.issuperset)N)%Ú__name__Ú __module__Ú __qualname__Ú__doc__Ú __slots__rr rr rrrrrrrrrrrr r!r"r#r$r%r&r'r(r)r*r,r.r0r1r2r3rrrrrsD          rN)ÚobjectrrrrrÚs